Hybrid cascading lubrication and cooling system
First Claim
1. A hybrid cascading lubrication and cooling system (200, 400) for an electrical machine (102), the electrical machine (102) comprising an inner nested stage (444) and an outer nested stage (446), wherein the inner nested stage (444) is radially nested about a central axis (216) of the electrical machine (102) with respect to the outer nested stage (446), the hybrid cascading lubrication and cooling system (200, 400) comprising:
- an oil pump (222) coupled to an oil pump inlet tube (226) to draw oil from an oil sump (224);
a cooling core (230) configured to distribute pumped oil within the electrical machine (102); and
a rotor member (212) coupled to the inner nested stage (444) and the outer nested stage (446) of the electrical machine (102), rotor member (212) configured to centrifugally pump oil from the cooling core (230) through inner radial holes (424) and outer radial holes (436) in the rotor member (212) upon rotation about the central axis (216) of the electrical machine (102).
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Accused Products
Abstract
A hybrid cascading lubrication and cooling system (200, 400) for an electrical machine (102) with nested stages is provided. The electrical machine (102) includes an inner nested stage (444) nested with respect to an outer nested stage (446). An oil pump (222) is coupled to an oil pump inlet tube (226) to draw oil from an oil sump (224), and a cooling core (230) to distribute pumped oil within the electrical machine (102). A rotor member (212) is coupled to the inner nested stage (444) and the outer nested stage (446). The rotor member (212) centrifugally pumps oil from the cooling core (230) through inner radial holes (424) and outer radial holes (436) in the rotor member (212) upon rotation about a central axis (216) of the electrical machine (102).
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Citations
10 Claims
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1. A hybrid cascading lubrication and cooling system (200, 400) for an electrical machine (102), the electrical machine (102) comprising an inner nested stage (444) and an outer nested stage (446), wherein the inner nested stage (444) is radially nested about a central axis (216) of the electrical machine (102) with respect to the outer nested stage (446), the hybrid cascading lubrication and cooling system (200, 400) comprising:
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an oil pump (222) coupled to an oil pump inlet tube (226) to draw oil from an oil sump (224); a cooling core (230) configured to distribute pumped oil within the electrical machine (102); and a rotor member (212) coupled to the inner nested stage (444) and the outer nested stage (446) of the electrical machine (102), rotor member (212) configured to centrifugally pump oil from the cooling core (230) through inner radial holes (424) and outer radial holes (436) in the rotor member (212) upon rotation about the central axis (216) of the electrical machine (102). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification